Writing-machine



H; ELMBLAD.

WRITING MACHINE.

APPLICATION FILED wuzsrlels.

Patented Sept. 7, 1920 .7 SHEETS-SHEET H. ELMBLAD.

WRITING MACHINE.

I I APPLICATION FILED JULY 28, 19l9| 1,352,405. Pate tedSept. 7, 1920.

I RR ISHE$SHEET 2.

R me a- Bin mml k H. ELMBLAD. wRnme MACHVINE. 1

APPLICATION FILED JULYZB, 1919- I 1,352,405. Patented Sept. 7, 1920..

H. ELMBLAD.

WRITING MACHINE.

APPLICATION FILED JULY 28] 1919- 1,352,405. PatentedSept. 7, 1920.

7 SHEETS-SHEET 4.

H. ELMBLAD. WRITING MACHINE.

I Y. I APPLICATION-FILED .lULY28ll9l9- 1,352,405.

7 SHEETS SHEET 6.

PatentedSept. 7,1920.f

H ELMBLAD.

WRITING MACHINE.

APPLICATION FILED JULY 28, I919- PatentedSept. 7,1920;

I SHEETSSHEET 1-,

' x57 -Q v v /////A Ii- .4;

Another UNITED STATES P OFFICE.

I-IJALMAR ELMBLAD,-OF CHICAGO, ILLINOIS.

WRITING-MACHINE.

Application f led July as,

To all whom. it may concern: 1

Be it known that I, HJALMAR ELMBLAD, a citizen of the United States,residing at Chicago, in the county of Cook and State of lllinois, haveinvented new and useful Improvements in Writing-Machines, of which thefollowing is a specification.

This'invention relates to a machine especially adapted to selectively.print comparatively large letters or characters one at a time.

It is the principal object of this invention to provide a simple, 7compact, and easily manipulated machine adapted to .print signs, displaycards, bulletins, and the like. object of this invention is to pro videmeans for spacing between letters or characters, which will move thepaper being I printed upon distances corresponding to the the line 44 ofproper spacing for the various letters of the alphabet and the othercharacters to be printed. It is a further object of this invention toprovide a machine so arranged that the type carrier may be quickly 'andexpeditiously changed to permit ,the use of type of different styles andsizes.

These objects will be more fully understood as will also other objectsand corresponding accomplishments of my invention. from the followingdetailed description of a preferred embodiment thereof. For the purposeof this description; reference is had to the accompanying drawings, inwhich:

Figure 1 is a side elevation of a complete machine; Fig. 1-is' afragmentary view of a portion ofthe type wheel and frame 'arm 7 with thecopy holder lowered; Fig.2 is a front elevation of the complete machine;Fig. 2? is-a front elevati'onpf the spacer arm and finger; Fig. 3-is aside elevation in vertical section; Fig. 4 is a section taken on Fig. 3;Fig. 5 is a section similar to Fig. 4, but showing'the spacing arm-leverin another position; Figa'JG. is a plan View of the spacer arm as seenon the line 6-6 of Fig. 3; Fig. 7 'is a plan view of the clutchmechanism for moving the paper carriage as seen on the line 7-7 of Fig.3; Fig. 8 is a view similar to Fig. 7 showing the clutch in anotherfposit1on.;'F1g.- 9

View of the front end of the spacer arm, the locking plate, and the maskfor the type; Fig. 10 is a detail view in section showing a portion ofthe type wheel and the spacing mechanism; Fig. 11

is a view similar to Fig. 10 showing the Specification of LettersiPatent.

ing a shaft 30.

Patented Sept. "2, 1920.-

1919. Serial No. 313,678.

spacing finger'in locked position; Fig. 12

is a fragmentary developed view of the periphery of the type wheel;.Fig. 13 is anenlarged detail view of the clutch for moving the papercarriage; v Fig. 14 is a section taken on the line 14-14 of Fig. 13;Fig. 15 is a section taken-on the line 1515 of Fig. 13; and Fig. 16 is afragmentary front elevation partly in section showing details of. thepaper carriage.

Broadly the machine comprises a wheel carrying type on its periphery,which may be depressed, when the proper type is in registry forprinting. A carriage for paper is provided with suitable mechanism forad vancing the paper under the wheel.

The table which supports the mechanism and upon which the paper rests isindicated by A. Mounted on the table is a Standard frame B. The lattersupports a type'wheel C in such a manner-that it may be rotated,depressed and elevated in a vertical plane for making the printingimpression. The

paper is moved over the table by means of.

a carriage D, and the carriage is actuated 3, the table A comprises atop 17 supportedin plate 22 and registeringv with the bore in arm 21 isa slot 23 see- Figs. 2 and 3, in which rides a slideblock, 24. Slideblock 24 is mounted upon a shaft 25, upon which the type wheel isjournaled.

shaft- 25 and upstanding therefrom is a pin 26 for engagement by thecopy holder mechanism. Secured to "the lowerside of the shaft 25 andextending through an openiiig in arm 21 is a pin 27 for operation of thespacing arm" lever. Disposed adjacent the rear end-pf shaft 25 andsecured to the under side thereof is a link 28. The end of shaft 25 hassecuredthereto a fork'embra-c- Secured to y The latter is rotatably ponsills 18 which extend from the front f mounted in the bore in arm 20 andprojects below the table top. A thrust collar 29 is secured to the topof shaft 30.

Formed on the lower side of arm 21 is bracket 31 carrying a pivot pinupon which is mounted a bell crank lever 32 having one arm engaged withpin 27. Pivotally attached to link 28 is a bell crank lever 33 WlllClliSmounted upon a bracket 34. Se-

curing the other 'arms of bellcrank levers 32'and 33 is a rod 35.Disposed between brackets 31 and 34 is a bracket 38 having a link 36 onthe end .of .which is secured a collar 37 slidably mounted upon rod 35.Fixedly secured to rod 35' adjacent lever 32 is a stop collar 37, anddisposed between stopycolla'r 37' andsliding collar 37. is a'compression spring 39. This construction provides fordepressing andelevating the type wheel shaft 25 with a straight line motion. movementof shaft 25, and, after pressure is released therefrom," restores theshaft to its upper position. j

The wheel C is disposed with its plane in a vertical position and isjournaled upon the shaft 25.; A screw 40 holds awasher 41in positionupon the end of shaft 25, thereb preventing displac'ementof the typewhee Secured on the hub of the type wheel is a handle 42, by means ofwhich the type wheel may be rotated and depressed forv printing.

On the face of the rim of the Wheel are attached-type bearing charactersfor printing, and marked on the inside in corresponding positions arethe characters. Cut into the .rim'on the rear side of the wheel arespacing notches, one for each character.

I These notches are for the purpose ofproperly spacing the lettersorcharacters as they are printed. The spacing is not uniform,

varying with the width of the letters, and.

is hereafter called just spacing to distinguish from uniform spacing.The operation of the notches in cooperation 'with the other elements ofthe spacing mechanism will be described later. I I

Referring particularly to 'Figs. 3, 7, and 8, an actuating arm 43 isfixedly secured to the shaft 30, so that oscillation of shaft 30 willcause similar movement of arm 43.,

Pivotally secured to the free .end of arm "43 is a'finger 44. Thepivotal connection betweenarm 43 and finger 44 is of the rulejoint type,permitting movement of the finger only in on e direction with respect to1 the arm.-v This joint is provided by con- I necting finger 44 andarm43 with a pivot pin 45. Arm 43 is reduced in. Width at the forward end--by cuttingaway oneside thereof, and a pin 46 .is 'secured to finger 44so that it will abut theside of the reduced portion. Thus, finger 44 maymove in the direction indicated by the dotted lines in 'Fig. 7, but dueto'thepin 46 it cannot Spring 39 resists the downward- Y preventingfurther movement.

swing about arm 43 in the opposite direc-' tion. Tending to'holdthefinger 44 in its straight line position with respect to the arm 43 is aleaf spring 47 which is attached at one end to the arm 43 and wovenabout a pin 48 fixed to the arm 43, and a pin 49 fixed to the finger 44.F ingei 44 is provided with anelongated opening 50 at its forward end,in WhlCh'lS'dlSPQSGd the pin 51 of a clutch. f

The clutch is best shown in Figs. 13, 14, 15, and 16. It is slidablysupported upon a base plate 52 which sp ans the middle sills" 18 of thetable, and is disposed below an.

opening in way 19. The clutch comprises a slide block 53 engaging a rail54 which is secured to the paper carriage. Pivotally secured to theblock 53 is a dog 55 for biting into therail 54. The dog isheld inengagement-with rail 54 bymeans of a compression spring 56. One end ofthe block 53 is undercut, is formed to pro'ect under and be spaced fromthe rail 54. undercut portion ofthe slide block is a brake 57. Thisbrake slidably engages the rail 54,

but has some 'clearance'so that it may rock a slight amount and grip therail. In ,order to move the brake into locking position, a

ivotally secured to the button 58 is secured to a sill 1 8 in such po- Isition that it may come into engagement with the free end of the brake,as'shown inFig. 7.

Referring to .Figs. 7 and 8, when the clutch is moved in the directionof the arrows, the dog 55, will bite into the-rail and move the rail inthe direction ofthe arrow. When the clutch reaches its extremeposition,brake 57' will engage the button '58 and rock the former into positiongripping the rail and Due to the position of the dog, the clutch mayslide on the rail in the direction opposite to the arrow. The'distancethat the rail and paper carriage is movedupon each oscillation of thearm 43 is dependent upon the'distance'to which the clutch'is moved as itslides along "the rail, The arm 43 is moved oscillating shaft 30 in theopposite direction. This is arm 60 which extends through an openinginthe arm 20 of the standard and projects forwardly above the table.

performed by movement ofaspacing ofthe spacing arm 60 is, formed "-with'a h bracket 61 to which iszpivotally attached a spacing finger 62adapted to enter the notches 43 on the type Wheel. The finger 62 hasaloop 63 engaged by a leaf spring 64 tending tohold the finger in outerpositlonagainst a 2 stop pin 65 mounted upon the Arm 60 is restrainedagainst such movement by a .lev er 66 pivotallv secured to plate 22. Arm66 1s of hell crank form, the upper end bracket 61. V 1 25 being-hookedover anarm of hell crank lever g 32. Upon downwardmovement of the shaft25, pm 27 moves downwardlyinto the position shown in Fig. 5. Thispermits the upper arm of lever 32 to be moved downwardly and spacing arm60 to swing out. Upon the This causes the lever 66 to return arm 60 toits central position. The topof finger 62 is inclined and the finger inits outer position, when the type wheel is raised, will be disposedunderneath the latter as shown in Figs. 1 .and'3. Upon the depression ofthe type wheel to print, the edge of the rim engages the top of thefinger and forces the latter inwardly as shown in Flg. 10. v However,

when a spacing notch registers with the end of the finger,.the latterwill be forced therein by the spring 64, as shown in Fig. 1.1.

Formed upon the locking lug 67. a

In order to print a letter, the latter should be in exact position. 'Aspacing notch for each letter is located at a uniform distance from thefront of each letter. Thus to print an R, the corresponding type shouldbe in position so that its notch registers with the locking lug 67whereupon the wheel may be depressed, the lug riding into the notch andsecurely locking The rim of the wheel partially conceals the locking lugfrom the view of the operator.

front of the plate 22 is a In order to make registration of thespacingnotch and locking lug easy of accomplishment by the operator, anindicating pin 67 is disposed immediately above the locking lug in suchposition that it is inside of the rim of the wheel. If the properspacing notch and the indicator pin are in alinement, then the lockinglugs will also be in alinement.

A movable mask prevents other letters from those to be printed frommaking an impression. Referring to Fig. 9 a bracket arm 68 is secured tothe bracket head 61 of arm 60 that carries at the lower end a curtain.The curtain moves with the spacing arm and adjusts the positionaccording to the width of the face of the type to be printed.

' The tympan 69 is mounted upon the top 7 of the table and beneath. thetype wheel.

upon the bottom of the way i acent This tympan may be of any suitableconstruc-- tion to cooperate with the type on the wheel and makesuitable impressions upon the Referring particularly to Fig. '16, thepaper carrier comprises a base 70 to which is secured the rail '54. Thebase bar 70 rides 19,the rail 54 being disposed in a groove formed inthe bottom of the way. The way is open be-' tween the central sills 18to permit the clutch to operate the end of the bar 70 are the bearingbrackets 71. Alinedopenings are formed adthe lower ends of thebracketsand journaled in these openings is a" roller 72.

' paper ofdifi'erent thicknesses.

76 against roller 72 are tension springs 7 7,

the wheel against rotation.

thereon. Disposed upon The trunnions for roller 72 extend beyond thebearing brackets and secured thereto are knobs 73 for turning theroller: Free movement of the roller maybe retarded by any rolled 76 mayhave a slight movement to and from roller 72 to accommodate it toHolding roller which hook over the trunnions on rollers 72 and 7 6. .Theline of contact between the rollers is about level with the top ofthetable. Paper to be printed upon is fed between the rollers and movedfrom the front to the back of the table.

The paper may thus be advanceda line or more at a time. The paper ismoved transversely of the table by means of the clutch.

The spacing-notches on the wheel are uniformly the same distance fromthe fore part or beginning of each letter. However, the

spacing notches are exactly or properly spaced between letters, "varyingaccording to the width of each letter. When it is desired I v to print aletter such as I, the printing wheel is rotated until the space for thetype I registers with the locking lug 67. This is done by grasping thehandle 42 and turning the' wheel until theletter I marked. on the insideof the rim, see Fig. 3, registers with the indicating pin 68. Theprinting wheel is now depressed, the spacing finger 62 being forcedinwardly as shown in Fig. 10. At the same I time the lever 66 1s movedso. as to permit "spacipg arm 60 to swing outwardly. ;As

soon as the spacing finger registers with the next notch wh'ichis thenotch for the letter J, thefifingenslips into the latter as shown' Thislocks the spacing arm v Movement of-- will have permitted spring in Fig.11. against further .movement.

the spaclng arm 59 to' move the clutch arm 43 and thereby move theclutch along the rail- 54 into the.

position shown inF-ig- 8: Upon returnvof the type wheel to its upperposition, the lever 66 returns the spacing far 60 to central position.The clutch is m'ovedrinto the position shown in Fig. 7, and .with it therail 54, as the latter grips it. reaches the end of its travel, ,brake57 is errgaged by button 58.and locked against further movement. Thespace for the letter I is determined by the distance between thenotches opposite the letters I and vJ. When printing the letter M, thespacing arm moves When the clutch I over the notch opposite N. Thisdistance ,correspondswith the space for the letter M which is differentfrom that for I.

In order to damp the movement of the.

a clutch along the rail and prevent the finger 44 from being thrownbeyond the desired point of travel, which might occiir because of theinertia of the parts, a pneumatic buffer is provided. This comprlses acon necting rod 7 8 secured to the pin .51 on the under side of theclutch block 53. Gem necting rod 7 8 is secured to aplunger whichoperates in a cylinder 79. Thus, an air buf-' fer is provide Inking isprovided for by means of ink-v ing rollers bearing against the typeSecured to the upper arm of standard B is an arm 80, upon the end ofwhich issecured a frame 81. Frame 81 carries inking-roll-' ers' bearingagainst the face of the type.

Any other suitable means rollers may be used.

It will be noted, especially from an .inspectio 'l of Fi 3, thatthe typewheel may be changed. hus, the characters of a diffor inking the Iferent style may be used, or a greater or lessernumber of characters maybe used;

By means of this construction an operator may have several dilferentwheels so that he 30 can change the style of the type used as desired.To remove the type wheel, the handle 42 is detached from the hub of thewheel, and the screw 40 removed. This permits the wheel to beslippedfrom the shaft 25., In

order to place the wheel in position to beremoved it should bedepressed'sufliciently to clear the-ink'rollers. This is accomplished bymeans of'the copy holder. Secured to the arm 21 of the frame is abracket 82. Pivotally mounted in the bracket is a foot 83 from-whichrises a leg 84 carrying at the upper, end means for grasping a copy. Thefoot 83 is arranged so that when the copy holder is swung intohorizontal position'as shown'in Fig. 1, it

. will engage the pin 26, thereby depressing the type wheel a limitedamount. The type wheel in this position clears both the ink rollers andthe tympan.

' Means must also be provided for moving the paper carriageto "spacebetween words, or to otherwise space when desired. This may beaccomplished by swinging theclutch linger 44 to the right from theposition shown/in F ig. 7, then releasing the finger and permitting thespring 47 to return the latter. F or the purpose of convenientlyoperating the finger 44 a bar 85 is secured thereto and extended to ,oneside of the table" convenient for the operator to reach. .The bar 85 maybe provided with a knob 86 as shown in Fig. 2; This is'only one meanswhich may be used for spacing and .moving the carriage. This means isshown for illustrative purposes only.

WVhat I claim is: 1 1 '1. In a printing machine, the combination of abase; a movable carriage for paper v thereon; a rotatable type wheelmovable so as to be depressed and engage said paper for printing, saidtype wheel having spacing notches on the rim thereof corresponding to ijust spacing; spacing means comprising a horizontally pivoted arm havinga finger to engage with said notches, means tending to .swing said arm,means to permit movement of said arm upon depression of said wheel andto return said arm upon elevation of said wheel, and a clutch for-movingsaid carriage in one direction connectedto said arm.

2. In a printing machine, the combination of a base; a movable carriagefor paper thereon; a rotatable type wheel movable so as to be depressedand engage said paper for printing, said type wheel having spacingnotches on the rim thereof corresponding to just spacing; spacing meanscomprising a horizontally pivoted arm, a vertically pivoted linger onthe end of said arm to engage with said notches, means tending to swingsaid arm, means to permit movement of said arm upon depression of saidwheel and to. re-

and a clutch for moving said'carriage in one directlon connected to saidarm.

turn said arm upon elevation of said wheel,

3. In a printing machine, the combination of a carriage for paper;a-rotatable .type

wheel vertically movable into engagement with the paper for printing,said type wheel having spacing notches on the 'rim thereof correspondingto just spacing; a locking lug for engagement with a notch to preventturn-,

ing of said wheel when in printing position;

and spacing'means comprising a horizontally movable arm having a fingerto engage said notches on printing movement of saidiwheel and therebycontrol the movement of said' finger-to engage saidnotches on printingmovementof said wheel, and .a clutch for moving said carriage in onedirection. 5. In a printing machine, the combination of a base; amovable carriage for paper thereon; a rotatable type wheel movable so asto be depressed and engage said paper for printing, said type wheelhaving spacing notches on the rim thereof corresponding to just spacing;a locking lug for engagement with a notch to prevent turning of saidwheel I comprising a horizontally pivoted arm havmg a finger to engagewith said notches,-

means tending to swing said arm, means to permit movement of said armupon depression of said wheel and to return 'saidarm upon elevation ofsaid wheel, and a clutch for moving said carriage in one directionconnected to said arm.

6. In a printing machine, the combination of a base; a movable carriagefor paper thereon; a rotatable type wheel movable so as to be depressedand engage said paper for printing, said type wheel having spacingnotches on the rim thereof corresponding, to just spacing; a locking lugfor engagement with a notch to prevent turning of said wheel when inprinting position; spacing means comprising a horizontally pivoted arm,a vertically pivoted finger on the end of said arm to engage with saidnotches means tending to swing said arm,.means to permit movement ofsaid arm upon depression of said wheel andto return said arm uponelevation of said wheel, and a clutch for moving said carriage in. onedirection connected to said arm. I

7. In a printing machine, the combination 1 I of a base; a movablecarriage for paper thereon; a rotatable type wheel movable intoengagement with the paper for yprintingj and spacing means for movingsaid carriage comprising a spacing arm operated by printing movementofsaid wheel, an actuating arm fixed thereto, a fingerpivotally,.-secured to said actuating arm by a rule-j oint connection,and a clutch for moving said carriage in one direction secured to saidfinger. v

In witness that I claim the foregoing I have hereunto subscribed my namethis 12th day of July, 1919. v

I HJALMAR ELMBLAD.

